Summary of Study ST003246

This data is available at the NIH Common Fund's National Metabolomics Data Repository (NMDR) website, the Metabolomics Workbench, https://www.metabolomicsworkbench.org, where it has been assigned Project ID PR002016. The data can be accessed directly via it's Project DOI: 10.21228/M81C00 This work is supported by NIH grant, U2C- DK119886.

See: https://www.metabolomicsworkbench.org/about/howtocite.php

This study contains a large results data set and is not available in the mwTab file. It is only available for download via FTP as data file(s) here.

Study ID	ST003246
Study Title	Effects of mitoregulin loss on cardiac and mitochondrial lipids in aged male mice
Study Summary	Cardiac lipidome analysis in aged (21 to 23-months old) male wildtype and mtln knockout mice
Institute	University of Iowa
Last Name	Boudreau
First Name	Ryan
Address	4334 PBDB, 169 Newton Rd, Iowa City, IA 52242
Email	ryan-boudreau@uiowa.edu
Phone	3193535573
Submit Date	2024-06-02
Raw Data Available	Yes
Raw Data File Type(s)	mzML
Analysis Type Detail	LC-MS
Release Date	2024-12-31
Release Version	1

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Sample Preparation:

Sampleprep ID:	SP003372
Sampleprep Summary:	Lipid extraction. Lipid extraction, based on Matyash et al.72, was performed as follows. All solutions were pre-chilled on ice. Tissues or mitochondrial pellets were transferred to labeled bead-mill tubes (1.4 mm, MoBio Cat# 13113-50) where lipids were extracted in a solution of 250 µL PBS, 225 µL MeOH containing internal standards, and 750 µL MTBE (methyl tert-butyl ether). Internal standards were Avanti SPLASH LipidoMix (Lot#12) at 10 µL per sample and Cambridge Isotope laboratories NSK-B and NSK-B-G1 (deuterated carnitines) at 10 µL per sample. The samples were homogenized in one 30 s cycle using the Omni Bead Ruptor followed by a rest on ice for 1 h. An addition of 188 µL PBS was made to induce phase separation. After centrifugation at 16,000 g for 5 minutes at 4 °C, the upper phases were collected and evaporated to dryness under a gentle nitrogen stream at room temperature. Lipid samples were reconstituted in 500 µL IPA (isopropyl alcohol) and transferred to an LC-MS vial with insert (Agilent 5182-0554 and 5183-2086) for analysis. Concurrently, a process blank sample and pooled quality control (QC) sample was prepared by taking equal volumes (~50 µL) from each sample after final resuspension.

Sampleprep ID:

SP003372

Sampleprep Summary:

Lipid extraction. Lipid extraction, based on Matyash et al.72, was performed as follows. All solutions were pre-chilled on ice. Tissues or mitochondrial pellets were transferred to labeled bead-mill tubes (1.4 mm, MoBio Cat# 13113-50) where lipids were extracted in a solution of 250 µL PBS, 225 µL MeOH containing internal standards, and 750 µL MTBE (methyl tert-butyl ether). Internal standards were Avanti SPLASH LipidoMix (Lot#12) at 10 µL per sample and Cambridge Isotope laboratories NSK-B and NSK-B-G1 (deuterated carnitines) at 10 µL per sample. The samples were homogenized in one 30 s cycle using the Omni Bead Ruptor followed by a rest on ice for 1 h. An addition of 188 µL PBS was made to induce phase separation. After centrifugation at 16,000 g for 5 minutes at 4 °C, the upper phases were collected and evaporated to dryness under a gentle nitrogen stream at room temperature. Lipid samples were reconstituted in 500 µL IPA (isopropyl alcohol) and transferred to an LC-MS vial with insert (Agilent 5182-0554 and 5183-2086) for analysis. Concurrently, a process blank sample and pooled quality control (QC) sample was prepared by taking equal volumes (~50 µL) from each sample after final resuspension.